Provides shared memory structures (using memory mapped files via
IPC::Mmap) to be used by diagnostic and debugger applications for Perl
scripts (see Devel::STrace). Using XS/C code to maximize performance,
creates a set of ring buffers with a configurable number of slots. Each
slot includes a field for a line number, a timestamp, and a fully
qualified subroutine name. Each ring buffer also includes additional
headers and fields to support diagnostic interfaces, e.g., watched
expressions, command/response interfaces to the monitored applications,
etc.
WWW: http://search.cpan.org/dist/Devel-RingBuffer/

Change the way Perl modules are installed, update the default Perl to 5.18.
Before, we had:
site_perl : lib/perl5/site_perl/5.18
site_perl/perl_arch : lib/perl5/site_perl/5.18/mach
perl_man3 : lib/perl5/5.18/man/man3
Now we have:
site_perl : lib/perl5/site_perl
site_arch : lib/perl5/site_perl/mach/5.18
perl_man3 : lib/perl5/site_perl/man/man3
Modules without any .so will be installed at the same place regardless of the